semantic-crawler

https://github.com/obale/semantic_crawler

SemanticCrawler is a ruby library that encapsulates data gathering from different sources. Currently microdata from websites, country information from Freebase, Factbook and FAO (Food and Agriculture Organization of the United Nations), crisis information from GDACS.org and geo data from LinkedGeoData are supported. Additional the GeoNames module allows to get Factbook and FAO country information from GPS coordinates.